I was contacted by John about the ignition sector gear I had made for my HQ. He needed one for a Holden Torana, I pointed out an aftermarket one I had found for HX, HZ, LX & UC model Holdens but it doesn’t seem these black sector gears are interchangeable. It also seems like the white/cream coloured reproduction part is no longer available so I have started to make one.
Here is some of the early work based off the aluminium gear I had made.
I was unfortunate enough to have the battery fail in my car recently. It had given an indication that it wasn’t well, with a few failed starts & stalled cranks. But it would start the engine and when I checked the battery it tested fine, the alternator was charging correctly and it only accepted a small top up charge. It wasn’t till I had to isolate the battery while doing other work that I noticed the corrosion above. Then…
It takes a lot of work to get to the stage of putting a bike project back together. Media blasting, sanding, de-greasing & ordering new parts. It can be tempting to rush but taking care in assembly will make sure everything works. It took a few trial assemblies to get the shims right on the QA-50 engine & transmission. Everything was fitting together nicely with minimal end-play. Then this happened…
Quiet on the blog but it has been busy in the workshop with a number of projects progressing. My VSCCS application has been approved in NSW and I am just waiting on a response from the WA Department of Transport. And the picture? Well one of the projects in progress is a rebuild of a 1974 Honda QA50. This is the engine casing after a quick bead blasting.
A recent inspection on a Holden Commodore revealed that the power steering cooler was leaking. The standard cooler is a length of 3/8″ steel tube running horizontally in front of the radiator. These are known for rusting and splitting or leaking fluid. Below is a close up of the part that was removed.
After using a popular “blender” for approximately nine months the blades no longer span as fast (audibly) and there would be a faint burning rubber smell after use. When the manufacturer was contacted I was informed that the base with the blades was a consumable item and they expected them to be replaced every six months. Continue reading Badly Engineered or Good Marketing?→
As mentioned previously on this blog, this is a motard style conversion of a Honda CRM 250 using a 2007 model Aprilia RS-125 wheels, discs and front brake caliper.
A custom bracket was designed in Solidworks to adapt the radially mounted caliper to the original brake caliper mounting holes. Designing in 3D allowed the part to be simulated (FEA) with heavy braking loads and calculate the factor of safety, stress, strain and distortion.
The APRILIA RS-125 caliper has finally been installed on the Honda CRM-250. The brake system has been bled with a quality DOT-4 brake fluid. It now has a solid feel (though there is some sponginess due to brake hose expansion – this may be replaced with a braided line) and no leeks in the system. So far low-speed testing has been carried out with further testing to come.